首页
登录
职称英语
[originaltext]M: Hello. This is Greg Rice reporting live in Barrow, Alaska.W:
[originaltext]M: Hello. This is Greg Rice reporting live in Barrow, Alaska.W:
游客
2024-05-14
51
管理
问题
M: Hello. This is Greg Rice reporting live in Barrow, Alaska.
W: Hello, Greg. Is everything going smoothly?
M: Yes. I’ve just arrived here in Barrow, Alaska, to bring you live coverage of what appears to be the results of a huge meteorite impact, perhaps the largest in recent history, that occurred just twelve hours ago. The exact location of the impact is unknown, but estimates put it about 20 kilometers south of Barrow based on shock waves felt throughout the region.
W: Are there any witnesses?
M: Yeah. Some witnesses say they saw a bright light streaking through the sky, accompanied by a roaring boom, moments before the impact. It’s unknown whether there are any casualties, but it is unlikely considering this sparsely populated area.
W: It’s said that such impacts were commonplace during the formation of our solar system, and many believe that a meteorite 10 kilometers in diameter which crashed into Earth 65 million years ago led to the mass extinction of many animal species including the dinosaurs.
M: You’re right. But it is often difficult to calculate the number of such large impacts on Earth because erosion and vegetation make it difficult to spot them. In recent years, astronomers have focused more of their attention on the paths of many uncharted space rocks or asteroids floating out there in the hope that we might be able to determine the threat they pose on mankind...This is Greg Rice reporting from Alaska.
W: Thanks, Greg...We’ll keep you up-to-date on any development there.
选项
A、Discovering new life in space.
B、Studying meteorites.
C、Plotting the courses of asteroids.
D、Developing radar telescopes.
答案
C
解析
What is the focus of the astronomers’ recent work?
信息明示题。男士最后说,近年来,天文学家更多地关注许多未知太空岩石或小行星的移动轨道,以希望可以判断出它们对人类造成的威胁,由此可知,天文学家近期工作的重点在于测定小行星的运行轨迹,故选C。
转载请注明原文地址:http://tihaiku.com/zcyy/3598535.html
相关试题推荐
【B1】______[br]【B8】______[originaltext]Whydopeoplemarry?Peopledivor
【B1】______[br]【B5】______[originaltext]Whydopeoplemarry?Peopledivor
【B1】______[br]【B4】______[originaltext]Whydopeoplemarry?Peopledivor
【B1】______[br]【B3】______[originaltext]Whydopeoplemarry?Peopledivor
【B1】______[br]【B2】______[originaltext]Whydopeoplemarry?Peopledivor
[originaltext]TheworldwideorganizationoftheRedCrossstemsfromtheide
[originaltext]TeadrinkingwascommoninChinafornearlyonethousandyear
[originaltext]W:You’vewonhowmanydifferentboxingdivisions.’?Four?M:It’
[originaltext]W:You’vewonhowmanydifferentboxingdivisions.’?Four?M:It’
[originaltext]M:Pleasesitdown,MissBrown.Ihaveseenyourresume.Couldyo
随机试题
Completethenotesbelow.WriteNOMORETHANTHREEWORDSAND/ORANUMBERforeac
Irunmanufacturingcompanywithabout350employees,andIoftendotheint
Faces,likefingerprints,areunique.Didyoueverwonderhowitispossible
根据群体是否具有显著的表面结构,将群体划分为()和()。
UML的包是一种对模型元素进行成组组织的通用机制,以便于理解复杂的系统。包与包之
在对软件系统进行评价时,需要从信息系统的组成部分、评价对象和经济学角度出发进行综
2011年10月召开的十七届六中全会通过了《中共中央关于深化文化体制改革、推动社
(2020年真题)某女,56岁。素有关节疼痛,刻下因咳嗽痰多就诊。诊断为:(1)
下列常用中成药中,不宜与苯巴比妥同服用的是A.虎骨酒 B.舒筋活络酒 C.散
关于管片拼装呈真圆并保持真圆状态的重要性,以下说法正确的是()。A、确保隧道尺
最新回复
(
0
)